5 stars for the first one/main story. amatatsu is enemies with sen. got hit by a ball, lost his consciousness and woke up in a parallel world where they were together. sen from the parallel world tries to make amatatsu fall for him, since he’s convinced that no matter what world they’re in, they’d be inlove. i loved this one. 2nd story is good too.
I'm Banging My Rival From A Parallel World!?